Evidence map›Paper›PMID 24869961›Full record

ArticlePloS one2014

Characterization of aging-associated cardiac diastolic dysfunction.

Wei-Ting Chang, Jung-San Chen, Yung-Kung Hung, Wei-Chuan Tsai, Jer-Nan Juang, Ping-Yen Liu

Open access · goldAbstract readValidation Study
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 15 papers.

0numbers the graph read from it
0cells of the map it votes in
15citing papers in PubMed
1.2field-weighted citation impact, top 20% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

15 citing papers in PubMed, 25 citations in OpenAlex.

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  6. Dysfunctional sarcomeric relaxation in the heart.Current opinion in physiology · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 2 institutions in 1 country.

Wei-Ting ChangDivision of Cardiology, Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan; Institute of Clinical Medicine, National Cheng Kung University, Tainan, Taiwan.
Jung-San ChenDepartment of Engineering Science, National Cheng Kung University, Tainan, Taiwan.
Yung-Kung HungDepartment of Engineering Science, National Cheng Kung University, Tainan, Taiwan.
Wei-Chuan TsaiDivision of Cardiology, Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan.
Jer-Nan JuangDepartment of Engineering Science, National Cheng Kung University, Tainan, Taiwan.
Ping-Yen LiuDivision of Cardiology, Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan; Institute of Clinical Medicine, National Cheng Kung University, Tainan, Taiwan.
National Cheng Kung University · TWNational Cheng Kung University Hospital · TW

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

aimsDiastolic dysfunction is common in geriatric heart failure. A reliable parameter to predict myocardium stiffness and relaxation under similar end-diastolic pressure is being developed. We propose a material and mathematical model for calculating myocardium stiffness based on the concept of linear correlation between [Formula: see text] and wedge pressure. METHODS AND

resultsWe enrolled 919 patients (male: [Formula: see text][Formula: see text]). Compared with the younger population of controls (mean age: [Formula: see text] years; [Formula: see text]; male: [Formula: see text] [Formula: see text]), the elderly (mean age: [Formula: see text]; [Formula: see text]; male: [Formula: see text] [Formula: see text]) had a greater prevalence of hypertension, diabetes mellitus, and coronary artery disease (all [Formula: see text]). We collected their M-mode and 2-D echocardiographic volumetric parameters, intraventricular filling pressure, and speckle tracking images to establish a mathematical model. The feasibility of this model was validated. The average early diastolic velocity of the mitral annulus assessed using tissue Doppler imaging was significantly attenuated in the elderly ([Formula: see text]: [Formula: see text] vs. [Formula: see text]; [Formula: see text]) and corresponded to the higher estimated wedge ([Formula: see text]) pressure ([Formula: see text] vs. [Formula: see text]; [Formula: see text]) in that cohort. E (Young's modulus) was calculated to describe the tensile elasticity of the myocardium. With the same intraventricular filling pressure, E was significantly higher in the elderly, especially those with [Formula: see text] values [Formula: see text]. Compared with diastolic dysfunction parameters, E also presented sentinel characteristics more sensitive for detecting early myocardial relaxation impairment, which indicates stiffer myocardium in aging hearts.

conclusionOur material and geometric mathematical model successfully described the stiffer myocardium in aging hearts with higher intraventricular pressure. Additional studies that compare individual differences, especially in health status, are needed to validate its application for detecting diastolic heart failure.

Indexed as

Models, BiologicalAdultAgedAged, 80 and overAgingBlood PressureEchocardiographyFemaleHeart Failure, DiastolicHumansMaleMiddle AgedMyocardiumPulmonary Wedge PressureVascular Stiffness

Identifiers

PMID24869961
PMCPMC4037178
OpenAlexW1997765121

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.